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Finding the Fourth Proportional to 16,597.62, 22,887.41 and 12,821.40

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Solution

The fourth proportional to 16,597.62, 22,887.41 and 12,821.40 is: 17,680.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,597.62 : 22,887.41 = 12,821.40 : x
  2. Step 2: Convert to fraction form
    16,597.62/22,887.41 = 12,821.40/x
  3. Step 3: Cross multiply
    16,597.62x = 22,887.41 × 12,821.40
  4. Step 4: Simplify right side
    16,597.62x = 293,448,574.47
  5. Step 5: Solve for x
    x = 293,448,574.47/16,597.62
  6. Step 6: Final answer
    x = 17,680.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.